Tired of condensation wrecking your shed tools or greenhouse gear? I built a no-frills ESP32 + DHT22 node that wakes every 15 minutes, grabs temp/humidity data, beams it over Wi-Fi, and sleeps—running ...

It’s getting hot in here.

Imagine walking into a room that automatically adjusts its temperature and humidity to your comfort level, no apps, no manual adjustments, just seamless automation. Sounds futuristic? Not anymore.

If you want to add humidity and temperature sensors to your home automation sensor, you can — like [Maker’s Fun Duck] did — buy some generic ones for about a buck. For a dollar, you get a little ...

In Thailand, smoke pollution caused by slash-and-burn agriculture has become a serious social problem, but many people cannot afford to purchase an air quality sensor that costs more than tens of ...

This humidity sensor consists of 2 copper conductors that are located at small distance from each other. The relay switches as soon as the moisture makes a connection that is more or less electrically ...

Numerous studies have shown that the indoor temperature and relative humidity at workplace significantly impacts workers’ comfort and productivity. The first step towards optimizing these two ambient ...

Spring showers may bring flowers and sunlit afternoons, but they also bring moisture that creeps into walls, ceilings and ...

Want more? Subscribe to our newsletter to get our investigations delivered straight to your inbox. Journalists, scientists and technologists gathered at San Diego State University on Saturday for ...